Conventional  water heaters store gallons of water and keep it continually warmed to a set temperature, which squanders energy. Imagine a scenario where water is heated only as it’s needed. and then  imagine the savings in water and bills. Of course no system is without flaws, including a demand-type water heater. Here are some common tankless water heater problems and fixes you may encounter.

Low Water Pressure

Inadequate water pressure makes it difficult to perform everyday tasks, such as showering or laundry. Begin troubleshooting by ensuring there aren’t too many applications drawing water at the same time.

  • If the pressure is not working properly, you should ask your utility company for help.
  • If the gas pressure is reduced, the flow of water in an attempt to meet the chosen output temperature will decrease.
  • Your plumbing may be clogged, which could be causing issues with your water system. Your plumber should inspect these areas for potential issues.

Hot Water Fluctuations

When your water has a cold burst, the hot water supply line can become clogged and stop working. This can be frustrating. When you notice this happening, check the filters on the cold water intake to ensure there is no debris.

  • Make sure the venting pipe is long enough to reach the roof.
  • Check the flow sensor for signs of damage.
  • Ensure the gas line is properly sized and for the maximum BTU.
  • Look for a fluctuation in the plumbing network

Water Is Too Hot

One of the most common tankless water heater problems is uncomfortably hot water. If you’re experiencing this problem, check the following:

  • Make sure the temperature is set to a level that is comfortable for the baby and not too hot.
  • Water flow may be reduced due to blockage in the filter or the plumbing system.
  • Have your contractor check the thermostat, which may be broken or misaligned.

Article help: How to unlock a navien tankless water heater.

Your Air Supply or Exhaust is Blocked

If your air supply or exhaust is blocked on your tankless water heater, your water heater is having issues with either combustion air or venting. First, ensure all ventilation pipes are connected properly and free from holes. Refer to your product manual to make sure the clearance requirements are being met, as installing your water heater too close to other objects can block the air supply and create a fire hazard. Many homes have birds’ nests, rodents, and wasps’ nests that can block vents. Be sure to thoroughly inspect all vents that are located or lead outside your home.

Fixing Tankless Water Heater Problems

Tankless water heater problems can usually be fixed with replaceable parts. Plumbers are usually the best people to hire to do the work. Even though I was able to save on the initial cost of purchasing a tankless water heater, I know that the risk involved in this DIY project is too great.

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